Subject: Re: [PATCH 15/16] Add device tree for Ebony

From: Segher Boessenkool <[email-masked]>
Date: Fri, 16 Feb 2007 10:23:02 +0100

>> Of course, I know that.  What I'm saying is that devices
>> where the *only* connection to the system is the DCR ring,
>> should use normal "reg" properties instead of "dcr-reg"
>> properties (and normal parent instead of "dcr-parent") to
>> describe the DCR registers, so that they get a valid unit
>> address.
>
> So you say that we shold have 2 different ways to encode a DCR mapping 
> ?
> Nah ....

If you don't, and you have two identical devices sitting
on the same DCR bus (but not on an MMIO bus), you have
no way to distinguish them.  Oops.  You might not like it
but that's the DCR's fault, not mine :-)

Segher